How do I buy CRO with ETH?

I'm quite curious about the process of purchasing CRO using ETH. Could you please elaborate on the steps involved? Do I need to set up a specific wallet or exchange platform? Are there any fees associated with the transaction? And how do I ensure the security of my funds during this process? Also, I'd like to know if there are any specific things I should be aware of before making the purchase. Could you guide me through the entire process, step by step?